EUNIS habitat classification 2012 > A - Marine habitats > A2 - Littoral sediment > A2.4 - Littoral mixed sediments

Littoral mixed sediments

English name: Littoral mixed sediments

Description (English)

Shores of mixed sediments ranging from muds with gravel and sand components to mixed sediments with pebbles, gravels, sands and mud in more even proportions. By definition, mixed sediments are poorly sorted. Stable large cobbles or boulders may be present which support epibiota such as fucoids and green seaweeds more commonly found on rocky and boulder shores. Mixed sediments which are predominantly muddy tend to support infaunal communities which are similar to those of mud and sandy mud shores.
Situation: It is probable that there are broad transition areas between areas of mudflat or sandy mudflat, and mixed sediment biotopes where the sediment consists principally of mud but has significant proportions of gravel and sand mixed in. Gravelly mud may occur in patches on mudflats. Similarly, there is unlikely to be an easily defined boundary between areas of mixed sediment with stable cobbles and boulders, and boulder fields which fall into the rocky shore category.

Source:
EUNIS habitat classification
Interpretation Manual of the habitats targeted by Resolution No. 4

Quick facts

EUNIS habitat type code A2.4
Bern Convention Resolution 4 habitat type (used for designation of Emerald sites)
Relation to Annex I habitat types (EU Habitats Directive)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Not available

Other classifications

Classification Code Habitat type name Relationship type
Palaearctic Habitat Classification 200112 14.1 Mud flats and sand flats wider
Palaearctic Habitat Classification 200112 11.27 Soft sediment littoral communities wider
CORINE Land Cover 4.2.3. Intertidal flats n/a
Marine Habitat Classification Britain/Ireland 0405 LS.LMx Littoral mixed sediment same
Ramsar Wetland Types G Intertidal mud, sand or salt flats wider
Phase 1 habitat classification (UK) 1993 H12 Intertidal: shingle/cobbles overlap
Phase 1 habitat classification (UK) 1993 H11 Intertidal: mud/sand overlap
Biodiversity Action Plan Priority Habitats (UK) 34 Sheltered muddy gravels not defined
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 A2.4 Littoral mixed sediments same
EUNIS Habitat Classification 200308 A2.4 Littoral mixed substrates same
EUNIS Habitat Classification 200202 A2.4 Littoral combination sediments same
EUNIS Habitat Classification 199910 A2.4 Littoral mixed sediments same
EUNIS Habitat Classification 199811 A2.4 Littoral mixed sediments same
EUNIS Habitat Classification 199712 A2.4 Littoral mixed sediments same
Palaearctic Habitat Classification 199905 14.1 Part of Mud flats and sand flats wider
Palaearctic Habitat Classification 199905 11.27 Part of Soft sediment littoral communities wider
Palaearctic Habitat Classification 1997 14 Part of Mud flats and sand flats wider
Palaearctic Habitat Classification 1997 11.27 Part of Soft sediment littoral communities wider
Palaearctic Habitat Classification 1996 11.27   wider
Palaearctic Habitat Classification 1993 11.27   wider
MNCR BioMar 97.06 (Britain & Ireland) LMX Littoral mixed sediments same
MNCR BioMar 96.7 (Britain & Ireland) LMX   same
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